Home / 30,429,661.12-41,992,845.54-16,678,582.72

Finding the Fourth Proportional to 30,429,661.12, 41,992,845.54 and 16,678,582.72

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Solution

The fourth proportional to 30,429,661.12, 41,992,845.54 and 16,678,582.72 is: 23,016,396.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,429,661.12 : 41,992,845.54 = 16,678,582.72 : x
  2. Step 2: Convert to fraction form
    30,429,661.12/41,992,845.54 = 16,678,582.72/x
  3. Step 3: Cross multiply
    30,429,661.12x = 41,992,845.54 × 16,678,582.72
  4. Step 4: Simplify right side
    30,429,661.12x = 700,381,147,987,073.12
  5. Step 5: Solve for x
    x = 700,381,147,987,073.12/30,429,661.12
  6. Step 6: Final answer
    x = 23,016,396.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.